Wilhelm tjmland



UNITED STATES PATENT Orricn.

WILHELM UMLAND, OF NEW YORK, N. .Y., ASSIGNOR TO PETER D. STRAUOH,

' OF SAME PLACE.

DAMPER FOR UPRlGHT PIANOS.

$PECIPICATION forming part of Letters Patent No. 3913. 95, dated October23, 1888.

Application filed August 13, 1888.

To all whom it may concern.-

Be it known that I, WILHELM UMLAND, of New York city, New York, haveinvented a new and Improved Damper for Upright Pi- 5 anos, of which thefollowing is a specification.

This invention relates to a damper so constructed that the damper-headmay be secured to the damper-block at any desired inclination. Thus thehead may be placed in the proper position above the string.

The invention consists in the various features of improvement, morefully pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional side view of myimproved damper. Fig. 2 is a longitudinal central section thereof. Fig.3 is an end View of the damper-head, and Fig. 4 a top view of thedamper.

The letter a represents the damper-1ever,at-

2o tached to hammer-rail by flange b, pivoted at c, the lever carryingthe damper-wire (Z, all as usual.

e is the damper-block,which is made of wood and of the form of a disk ordrum, having its periphery surrounded by a sheet-metal band, f, toprevent splitting. The block 6 is perforated diametrically-for theadmission of the wire d, which is clamped to the damper-block by thescrew 9.

h is a pin the shank of which is glued into 1 Serial No. 282,493. (Nomodel.)

a socket of the damper-block. The head h of this pin projects beyond theblock and has a rounded or convex face, as shown in Fig. 2.

The damper-head '2', cushioned as usual, is provided with a socket, 2',corresponding in shape to that of head 71 It will be seen that thedamper-head may be fitted to the pin at any desired inclination tostring A, and that still the contact-surfaces between the damper-headand pin-head will always fit snugly upon one another. The damper-head issecured to the pin-head by glue after the damper-head has been set tothe desired angle.

hat I claim is 1. The combination of disk-shaped block 6 with thesurrounding metal band f, and with a pin secured to the block 6, andwith adaniperhead secured to the pin, substantially asspecified.

2. The combination of a damper-block with a pin, h, having rounded headh, and with the damper-head i, which has a socket, 2', adapted toreceive the head h, substantially as specified.

VILHELM UMLAXD.

Vfitnesses:

PETER D. STRAUCH, F. v. BRIESEN.

